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The MPCA has a variety of educational displays, programs, and materials about chloride pollution. We encourage our partners to utilize these resources to engage with their community.

MPCA guidance on petroleum site investigation and remediation, reporting, and more.

Kohlman Lake, one of 27 bodies of water to come off the impaired waters list this year, did so with substantial help from the Clean Water Fund.

Best practices for SSTS installations drafted by St. Louis County, Minn., in 2008 based on the experiences of SSTS installers and inspectors.

Minnesota has revised state water quality standards to incorporate a tiered aquatic life use (TALU) framework for rivers and streams.

The MPCA regulates the design, construction, and operation of treatment facilities for municipal and industrial wastewater in Minnesota.

Anglers can choose lead-free materials when shopping for fishing tackle. Popular options include tungsten, steel, tin, bismuth/tin, and glass.

The St. Louis River Mercury TMDL will determine mercury reductions needed for lakes and rivers in the St. Louis River watershed.

Thermal paper is thin with a slick feel or sheen finish and discolors easily when scratched.

Businesses like grocery, liquor, and convenience stores depend on refrigeration systems. Some of these systems, however, can prove expensive to operate and harmful to the environment.

Don't let your septic system freeze. Here are some simple tips that can help you avoid costly problems with your septic system.

Many industrial by-products are good candidates for land application based on their nutrient content.

Minnesota’s extended producer responsibility bill for packaging, food packaging, and paper products requires a producer responsibility organization to reduce the environmental and human health impacts of these materials.

MPCA seeks public comment on two draft industrial wastewater permits for U.S. Steel Corp.’s Keetac mining area and tailings basin in Keewatin, Minnesota. These permits will improve protections for wild rice waters and human health.

The Minnesota Pollution Control Agency has developed a draft air permit for MagIron LLC in Coleraine that will require a fugitive dust control plan to help reduce emissions of particulate matter from roads, storage, stockpiles, and exposed mining areas.

Plastic can be recycled, but it’s often not, a situation the MPCA aims to resolve with grants to develop markets for recycled plastic.

Recycling is good for Minnesota's economy. It supports more than 60,000 jobs in our state, paying almost $3.4 billion in wages and adds nearly $15.7 billion to Minnesota's economy.

General Waste and Recycling, LLC plans to convert approximately 19 acres of permitted industrial solid waste space in Itasca County so that it can accept nearly 100,000 cubic yards of municipal solid waste (MSW) per year.

The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.

One indicator of impairment that puts a stream on the Impaired Waters List is its macroinvertebrate population. Here's how that works.